SVM

SVM is an esoteric programming language by user:David.werecat that works as a virtual machine with expandable memory.

Data types

Data types are represented as follows: (1 character for data type)(n characters for reference)

Data type	Char code	Address representation	Use
immediate	`=`	8 hex chars	is an integer which is specified in the program data
memory	`*`	8 hex chars	references a memory location
register	`!`	2 hex chars	references an integer register
stack	`^`	n/a	uses the stack
queue	`~`	n/a	uses the queue
pointer	`@`	n/a	uses the pointer variable to reference a memory location
imm. string	`$`	? chars	is a string which is specified in the program data

Commands are two letters in length and are represented as follows: (2 character command)(1 space character)(parameters comma separated)(newline).

Command	Parameters	Description	Exceptions
`AM`	1	expands memory by `P1`	n/a
`RM`	1	shrinks memory by `P1`	Lowest possible memory size is 16
`IP`	1	increments pointer by `P1`	n/a
`DP`	1	decrements pointer by `P1`	Pointer cannot go below `0x00000000`
`PV`	1	pointer value `-> P1`	`P1` must be a memory pointer, limited by size
`M+`	3	`P3=P1+P2`	Always integers
`M-`	3	`P3=P1-P2`	Always integers
`M*`	3	`P3=P1*P2`	Always integers
`M/`	3	`P3=P1/P2`	Always integers
`M^`	3	`P3=P1^P2`	Always integers
`AD`	3	`P3=P1 AND P2`	Always integers
`OR`	3	`P3=P1 OR P2`	Always integers
`XR`	3	`P3=P1 XOR P2`	Always integers
`NT`	2	`P2= NOT P1`	Always integers
`CM`	3	mem `P1` size `P2 ->` mem `P3`	Limited by maximum memory size
`ZM`	2	zeros mem `P1` size `P2`	Limited by maximum memory size
`IC`	1	user keycode `-> P1`	n/a
`II`	1	typed integer `-> P1`	n/a
`IL`	1	typed line `-> P1`	Doesn't copy if memory overflow
`DD`	2	displays text `P1` size `P2`	n/a
`DI`	1	displays integer `P1`	n/a
`DC`	0	clears display	n/a
`##`	0	COMMENT	n/a
`GT`	1	jumps to instruction `P1`	`P1` is the logical instruction number
`SK`	1	jumps to instruction `P1`	`P1` is the offset from the current instruction
`IG`	4	if `P1 P2 P3` then `GT P4`	`P2` is a predefined comparator (integer)
`IS`	4	if `P1 P2 P3` then `SK P4`	`P2` is a predefined comparator (integer)
`WT`	1	waits `P1` miliseconds	`P1` is an integer
`BP`	0	beeps	n/a
`EP`	0	ends program	n/a

Note: In the examples, whenever a value like P1 appears, it represents a parameter.